General Test and Final Information

# Final Exam Information

Basic Information: The final exam is open book and CLOSED notes. The final exam will have 20 problems worth 6 points each for a total of 120 possible points. The problems will be as described below. The location of actual similar problems is given after the problem description.

Testing Time: The entire final period will be devoted to the taking the final exam. At the end of the final period, all final exam work must be completed. Students who have studied the material can finish the problems they know how to do in 90 minutes or less.

Materials Needed:

 Paper ruled notebook or graph paper at least 4 sheets Pencil pens are allowed Calculator TI-83, TI-84 or comparable graphing calculator Ruler for drawing lines and setting up scales

Problem Descriptions:

1 – Classification problem with three parts:
 a) Classify a variable as qualitative or quantitative as in #21-26 p.12 b) Classify a quantitative variable as discrete or continuous as in #29-36 p.12 c) Classify a study as observational or experimental as in #9-16 p.20
1 - Identify the population and sample in a research objective as in #45-48, 50 pp.12-13)
There will be 6 problems based on a set of data as in #21-28 pp.162-63, as follows:
 1 – Find the mean, mode and midrange as in #13-16 p.126, #46 p.130 1 - Find the quartiles as in #21(b), 22(b), 23(a), 24(a) p.162 1 - Find the range, standard deviation, and interquartile range as in #17-20 p.142, #21(c), 22(c) p.162 1 - Make a quantitative frequency distribution with 4, 5 or 6 classes (Quantitative Frequency Distributions). 1 - Make a histogram with 4, 5 or 6 classes (Histograms). 1 - Make a modified box plot and determine its shape (Modified Boxplots)
1 - Find the mean and standard deviation of grouped data #3-7 pp.152-53.
1 - Find a weighted mean as in #11-14 pp.153-54.
1 - Make a scatter diagram as in #23-25(part b only), 26-28(part a only) pp.189-191.
1 - Find the equation of the regression line and plot the regression line on the corresponding scatter diagram (Regression Line).
1 - Find and interpret the expected value of a probability distribution as in #29-30 pp.302-303.
1 - Compute probabilities involving a binomial experiment as in #35(b,c,d),36(b,c,d),37(a,b),38(a,b,c) p.316.
1 - Compute probabilities using the normal distribution as in #17(a,b,c),18(a,b,c),19(a,b,c,d),20(a,b,c),21(a,b,c,d,e) p.354 or #21(c,d),22(b,c),23(b,c),24(b,c) p.389
1 - Find cutoff values for a normally distributed random variable as in #25-27 p.355
1 - Find a confidence interval as in #31-34 (part a only) pp.417-18, #13-18 pp.431-32 or #19(c,d),20(c,d),22(c),23(c,d),24(c,d) pp.442-43.
1 - Find a minimum sample size as in #43-48 pp.420-21 or #25-30 p.443
1 - Test a hypothesis involving a mean as in #27-30(part b only) pp.478-79 or #15-18 pp.488-89. (A correct answer includes the test statistic, the P-value and a conclusion in English.)
1 - Test a hypothesis involving a proportion as in #9-16 pp.498-99. (A correct answer includes the test statistic, the P-value and a conclusion in English)

 Indicates a ruler is required to create the answer for the problem. Indicates there is a routine on the calculator which quickly does most of the work for the problem Indicates the problem takes some time to work correctly. Indicates finding the answer requires some heavy thinking.

WARNING: Every semester a student will tell me at the end of the final period, "If I had more time, I could finish." I do not doubt this at all. All the problems on the final exam are similar to ones in the textbook, so if you read and study the textbook long enough, you could finish the final. Unfortunately, you just have the time scheduled for the final exam period.

Your objective is to organize what you learned during this course so you can answer as many problems as possible in the time allotted. You must read and practice problems before the final exam so you know what formulas to use and where any needed information is given in the problem statements. The main reason the final exam is open book is to allow you to look up any formulas you might have forgotten - not to read the background material needed to do each problem.

Most students can earn about 90 out of the 120 possible points. Each semester, there are students who earn 108 points or more on the final, but there are also students who earn less than 72 points on the final.

General Test and Final Information